Material: These tongue rings made of high quality 316L stainless steel and bioflex acrylic which is nickel-free and lead-free, comfort for your daily wearing within long time wearing.Size: The Barbell Length: approx. 16 mm ( 5/8 ), Bar Thickness: 1.6mm ( 14G ), Ball Diameter: 6mm. Lightweight, soft and smooth, the balls do come off both ends, easy to screw on and off. convenient for you to wearing.Multi-Purpose: Can be used for both nipple ring and tongue ring retainer, color assorted with DUPLICATES which means you can use it as nipple ring, lip ring, earring ring, belly ring, nose ring, body piercing ring that you would like to wearing it, also.Package Included: Come with 55pcs assorted colors mixed acrylic ball flexible bioflex bar tongue rings and 55pcs stainless steel bar acrylic ball tongue rings. you can wearing it in different day and occasion, These barbell tongue/nipple pierce jewelry for teen boys and teen girls, men and women.Wonderful Gift: it is a colorful & variation pattern tongue rings, include flexible and surgical steel tongue ring, a lot tongue rings means you can use it for your bussiness, daily wearing, it is a good choice to send it as a gift for your friends, family, and others wearing on party, graduation, birthday, christmas, anniversary, valentine's day and you can trying to wearing it as lip ring, earring etc,.